Comment 16 for bug 897583

Author: jakub
Date: Thu Dec 8 13:36:40 2011
New Revision: 182112

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182112
Log:
 Backport from mainline
 2011-12-05 Jakub Jelinek <email address hidden>
      Eric Botcazou <email address hidden>

 PR middle-end/51323
 PR middle-end/50074
 * calls.c (internal_arg_pointer_exp_state): New variable.
 (internal_arg_pointer_based_exp_1,
 internal_arg_pointer_exp_scan): New functions.
 (internal_arg_pointer_based_exp): New function.
 (mem_overlaps_already_clobbered_arg_p): Use it.
 (expand_call): Free internal_arg_pointer_exp_state.cache vector
 and clear internal_arg_pointer_exp_state.scan_start.

 2011-11-26 Joern Rennecke <email address hidden>

 PR middle-end/50074
 * calls.c (mem_overlaps_already_clobbered_arg_p):
 Return false if no outgoing arguments have been stored so far.

 2011-12-05 Jakub Jelinek <email address hidden>
      Eric Botcazou <email address hidden>

 PR middle-end/51323
 PR middle-end/50074
 * gcc.c-torture/execute/pr51323.c: New test.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.c-torture/execute/pr51323.c
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/calls.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog